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Identifying body for touch-sensor system and touch-sensor system

a technology of touch-sensor system and body, which is applied in the direction of digital data authentication, instruments, computing, etc., can solve problems such as signal detection, and achieve the effect of increasing the amount of signal to be detected and detecting more accurately

Inactive Publication Date: 2017-07-06
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a touch-sensor system that can accurately detect the shape of an identifying body, such as a stylus, by rectifying energy loss. This is different from previous methods that corrected or distinguished ghost touches on the controller side or sensor unit. The system uses the energy of the drive signal to consume energy in a way that reduces energy loss. This allows for more accurate detection of the shape of the identifying body and increases the overall signal to be detected.

Problems solved by technology

A problem that may occur in the capacitive scheme is that a signal may be detected in a position other than the position which the user intends to touch on a screen.
The ghost that occurs in a touch-sensor system that detects multi-touch inputs is caused by an interference by a sensor via an indicating body in a case where a grounding condition of the indicating body such as a finger of a person is insufficient.

Method used

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  • Identifying body for touch-sensor system and touch-sensor system
  • Identifying body for touch-sensor system and touch-sensor system
  • Identifying body for touch-sensor system and touch-sensor system

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0099]FIG. 1 is a block diagram that illustrates a configuration example of an identifying body for a touch-sensor system in the first embodiment of the present invention.

[0100]In FIG. 1, an identifying body 1 for a touch-sensor system of the first embodiment includes a conductive pattern unit 2 in which a conductive pattern in a prescribed shape is arranged to be opposed to a screen of a touch panel of a touch-sensor system 4 and a virtual grounding circuit unit 3 that has an equivalent function to a ground circuit for the conductive pattern, is installed on a touch panel surface of the touch-sensor system 4 that enables a position input operation of an indicating body, and is used for user authentication and so forth. In brief, the identifying body 1 for a touch-sensor system contacts with or approaches the touch panel surface of the touch-sensor system 4 that enables the position input operation of the indicating body such as a finger, and a conductive pattern 21 in a prescribed ...

second embodiment

[0170]In the second embodiment, a description will be made about a case where a circuit of a coil 321 or an antenna 325, which will be described later, is used as specific examples of the ground compensating circuit unit 32 that has an equivalent function to the ground circuit for the conductive pattern 21.

[0171]First, a description will be made about a case where a coil circuit of the coil 321 described later is used as a specific example of the ground compensating circuit unit 32.

[0172]FIG. 20 is a block diagram that illustrates a configuration example of an identifying body 1A for a touch-sensor system in the second embodiment of the present invention.

[0173]In FIG. 20, the identifying body 1A for a touch-sensor system of the second embodiment includes the conductive pattern unit 2 in which the conductive pattern 21 in a prescribed shape is arranged to be opposed to the screen of the touch panel and a virtual grounding circuit unit 3A that has an equivalent function to the ground ...

third embodiment

[0197]In the third embodiment, a description will be made about a case where a conductive pattern 23 of a conductive pattern unit 2C is configured by using a ground compensating circuit unit 32C that has a coil circuit or an antenna circuit of a conductive body in order to avoid the response of the ground compensating circuit unit 32C to the touch-sensor system 4. In brief, this is a case where the conductive pattern itself is configured with the coil circuit or the antenna circuit of the conductive body.

[0198]FIG. 24 is a block diagram that illustrates a configuration example of an identifying body for a touch-sensor system in the third embodiment of the present invention.

[0199]In FIG. 24, in the identifying body 1C for a touch-sensor system of the third embodiment, the conductive pattern 23 in a prescribed shape is arranged to be opposed to the touch panel surface of the touch-sensor system 4 that enables the position input operation of the indicating body such as a finger, and a ...

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Abstract

A shape of a code identifying body as seen from a touch panel surface is more accurately detected not by correcting a ghost on a controller side of a touch-sensor system or distinguishing the ghost from a real touch by a sensor unit but by rectifying the ghost on the code identifying body side and increasing a detection signal.An identifying body 1 for a touch-sensor system includes a conductive pattern unit 2 in which a conductive pattern in a prescribed shape is arranged to be opposed to a screen of a touch panel of a touch-sensor system 4 and a virtual grounding circuit unit 3 that has an equivalent function to a ground circuit for the conductive pattern, is installed on a touch panel surface of the touch-sensor system 4 that enables a position input operation of an indicating body, and is used for user authentication and so forth.

Description

TECHNICAL FIELD[0001]The present invention relates to an identifying body for a touch-sensor system for performing user authentication and a touch-sensor system in which the identifying body is used to perform identification and a touch or multi-touch input operation is performed.BACKGROUND ART[0002]In recent years, systems have been constructed which use networks to take out information accumulated in databases in various places. For example, in PTL 1, in a case where a printing device makes a print request for print data that are temporarily accumulated on a server and the print data are thereby output from the printing device, identification information is used to perform user authentication for an electronic apparatus.[0003]Meanwhile, touch-sensor techniques have been rapidly developed as an input device of a computing system accompanying the spread of smart phones and tablet PCs. Touch panel techniques in the early days identify an input position by one touch. However, a main c...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F21/32G06F2203/04104G06F3/044G06F3/0442G06F3/04166G06F3/0446G06F3/0393
Inventor SHINYA, HIDEAKI
Owner SHARP KK